lwjgl/src/java/org/lwjgl/opengles/EGLContext.java

114 lines
3.5 KiB
Java

/*
* Copyright (c) 2002-2011 LWJGL Project
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are
* met:
*
* * Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
*
* * Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* * Neither the name of 'LWJGL' nor the names of
* its contributors may be used to endorse or promote products derived
* from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
* TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR
* CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
* PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
* PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
* LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
* NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
* SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
package org.lwjgl.opengles;
import org.lwjgl.LWJGLException;
import org.lwjgl.PointerWrapperAbstract;
import java.nio.IntBuffer;
import static org.lwjgl.opengles.EGL.*;
/** EGLContext wrapper class. */
public final class EGLContext extends PointerWrapperAbstract {
private EGLDisplay display;
private final EGLConfig config;
private boolean destroyed;
EGLContext(final EGLDisplay display, final EGLConfig config, final long pointer) {
super(pointer);
if ( !display.isInitialized() )
throw new IllegalStateException("Invalid EGL display specified.");
if ( config.getDisplay() != display )
throw new IllegalStateException("Invalid EGL config specified.");
this.display = display;
this.config = config;
}
public void setDisplay(EGLDisplay display) {
this.display = display;
}
EGLDisplay getDisplay() {
return display;
}
EGLConfig getConfig() {
return config;
}
private void checkDestroyed() {
if ( destroyed )
throw new IllegalStateException("The EGL surface has been destroyed.");
}
public void destroy() throws LWJGLException {
eglDestroyContext(display, this);
destroyed = true;
}
/**
* Returns the value of the specified EGL context attribute.
*
* @param attribute the context attribute
*
* @return the attribute value
*/
int getAttribute(final int attribute) throws LWJGLException {
checkDestroyed();
IntBuffer value = APIUtil.getBufferInt();
eglQueryContext(display, this, attribute, value);
return value.get(0);
}
public void makeCurrent(final EGLSurface surface) throws LWJGLException, PowerManagementEventException {
makeCurrent(surface, surface);
}
public void makeCurrent(final EGLSurface draw, final EGLSurface read) throws LWJGLException, PowerManagementEventException {
eglMakeCurrent(display, draw, read, this);
}
public boolean equals(final Object obj) {
if ( obj == null || !(obj instanceof EGLContext) )
return false;
return getPointer() == ((EGLContext)obj).getPointer();
}
}